Composite for pantograph slide plate of electric vehicle and preparation method thereof

A pantograph sliding plate and composite material technology, which is applied in electric vehicles, vehicle parts, chemical instruments and methods, etc., can solve the problems of complex preparation process of pantograph sliding plate, unstable product comprehensive performance and low reliability of use, etc. To achieve excellent friction properties and mechanical properties, improve wear resistance and arc erosion resistance, improve the effect of density

Active Publication Date: 2017-04-26
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a composite material for pantograph slides, aiming to solve the problems of complex preparation process, unstable comprehensive product performance, difficult manufacture and low reliability of use of pantograph slides provided by the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]Using a wire diameter of 0.12mm, 40 mesh, copper mesh with a mass fraction of 12%, copper-coated graphite powder with a mass fraction of 8% (graphite with a mass fraction of 30%, copper with a mass fraction of 70%), and carbon fibers to make density 0.90g / cm 3 The 2.5D carbon fiber / copper mesh needle-punched integral felt was prepared by chemical vapor infiltration process with a density of 1.75g / cm 3 The C / C-Cu composite material with a density of 2.10g / cm was prepared after two resin impregnation-carbonization processes and high temperature treatment 3 The C / C-Cu composite material.

[0027] The metal-type carbon fiber reinforced carbon composite material in this example is mainly prepared through the following steps:

[0028] (1) First of all, the PAN type T700 (12K) carbon fiber produced by Japan's Toray Company (Toray) is used to make the net tire and no weft cloth, and the single layer of 0 ° no weft cloth, net tire layer, copper-plated graphite powder (particle ...

Embodiment 2

[0034] Using a wire diameter of 0.15mm, 50 mesh, a copper mesh with a mass fraction of 18%, a mass fraction of 12% copper-coated graphite powder (a mass fraction of 45% graphite, and a mass fraction of copper of 55%), carbon fibers, the density 1.15g / cm 3 The 2.5D carbon fiber / copper mesh needle-punched integral felt was prepared by chemical vapor infiltration process with a density of 1.85g / cm 3 The C / C-Cu composite material with a density of 2.20g / cm was prepared by two resin impregnation-carbonization processes and high temperature treatment 3 The C / C-Cu composite material.

[0035] The metal-type carbon fiber reinforced carbon composite material in this example is mainly prepared through the following steps:

[0036] (1) First of all, the PAN type T700 (12K) carbon fiber produced by Japan's Toray Company (Toray) is used to make the net tire and no weft cloth, and the single layer of 0 ° no weft cloth, net tire layer, copper-plated graphite powder (particle size 100 micr...

Embodiment 3

[0042] Using a wire diameter of 0.12mm, 100 mesh, a copper mesh with a mass fraction of 23%, a mass fraction of 4% copper-coated graphite powder (a mass fraction of 40% graphite, and a mass fraction of 60% copper), carbon fibers, made of density 1.25g / cm 3 The 2.5D carbon fiber / copper mesh needle-punched integral felt was prepared by chemical vapor infiltration process with a density of 1.98g / cm 3 The C / C-Cu composite material with a density of 2.35g / cm was prepared after two resin impregnation-carbonization processes and high temperature treatment 3 The C / C-Cu composite material.

[0043] The metal-type carbon fiber reinforced carbon composite material in this example is mainly prepared through the following steps:

[0044] (1) First of all, the PAN type T700 (12K) carbon fiber produced by Japan's Toray Company (Toray) is used to make the net tire and no weft cloth, and the single layer of 0 ° no weft cloth, net tire layer, copper-plated graphite powder (particle size 150 ...

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Abstract

The invention discloses a composite for a pantograph slide plate of an electric vehicle and a preparation method thereof. The preparation method is characterized in that a reinforcement body is a three-dimensional compound woven body composed of carbon fibers and copper nets, copper-coated graphite powder is adopted as a conductive and abrasion-resistant filler, and the pantograph slide plate material is obtained through CVI deposition, resin pressurization impregnation densification and high-temperature thermal treatment. According to the composite, three-dimensional compound weaving of the carbon fibers and the copper nets is utilized, so that metallic copper forms network structures which communicate with each other in the composite, and low-resistance channels are provided for motion of electrons in the current-carrying state; high-temperature sintering is adopted, so that continuity of the three-dimensional network structures of copper is better, and integral density of the material is greatly improved; graphite is introduced, so that the integral lubricating performance of the material is improved, the situation that when the copper nets rub against a catenary contact wire, the catenary contact wire is greatly abraded is decreased, and abrasion for the catenary contact wire is remarkably reduced while the integral electrical conductivity and mechanical properties are improved; and the composite has excellent friction properties and mechanical properties and is long in self friction durability, abrasion for the catenary contact wire is small, and safety operation of the electric vehicle is guaranteed.

Description

technical field [0001] The invention relates to a metal-type carbon fiber reinforced carbon composite material for a pantograph slide plate of an electric vehicle and a preparation method thereof; it belongs to the technical field of electric vehicle equipment preparation. Background technique [0002] As an important current-receiving component for electric locomotives to import electric energy and obtain power, the quality and electromechanical performance of pantograph slides have an important impact on the current-receiving conditions of electric locomotives and the life of contact wires. At present, the pantograph slides widely used at home and abroad mainly include pure carbon slides and copper-impregnated carbon slides. Pure carbon skateboard has self-lubricating properties and good wear resistance, but its own mechanical strength is low, and it is easy to break and fall off during use. Moreover, graphite has a large resistance and a small collection capacity, resulti...

Claims

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Application Information

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IPC IPC(8): B60L5/20B32B9/00B32B9/04B32B15/02B32B15/20B32B5/06B32B37/02C23C16/26D06M15/39D06M101/40
CPCB32B5/06B32B5/24B32B5/26B32B5/30B32B15/02B32B15/14B32B15/20B32B37/02B32B2260/023B32B2260/025B32B2260/046B32B2262/103B32B2262/106B32B2264/108B32B2307/202B32B2307/554B32B2605/10B60L5/205C23C16/26D06M15/39D06M2101/40
Inventor 方华婵肖鹏
Owner CENT SOUTH UNIV
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